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目的检测四川阿坝与内蒙古陈旗砖茶中的氟含量，了解砖茶氟含量水平。方法采用氟离子选择电极法。结果５３份砖茶氟含量均值为７４８．５ｍｇ／ｋｇ，其中四川阿坝与内蒙古陈旗的砖茶氟含量均值为７４１．５ｍｇ／ｋｇ、７５６．８ｍｇ／ｋｇ，二者差异无显著意义（ Ｐ>０．０５）；水煮法检测的氟含量占酸浸法的 ７７． １％；砖茶氟含量是其它茶叶的 ４． ４倍；不同环节、不同产地的砖茶氟含量差异无显著意义（Ｐ>０． ０５）。结论砖茶氟含量高于其它茶叶，应制订砖茶氟含量标准。
Objective To detect the fluorine content in Aba of Sichuan Province and Chenqi Brick Tea in Inner Mongolia, and to understand the level of fluorine in brick tea. Methods fluoride ion selective electrode method. Results The average content of fluorine in brick and tea of 53 pieces was 748.5mg / kg, of which the brick tea content of 741.5mg / kg and 756.8mg / kg in Aba of Sichuan and Chenqi in Inner Mongolia were not significantly different (P> 0. 05); boiling water method for the detection of fluorine content of acid leaching method 77. 1%; brick tea fluorine content is 4 other tea. 4 times. There was no significant difference in the content of fluorine in brick tea between different areas and in different areas (P> 0.05). Conclusion The brick tea fluoride content is higher than other tea, brick tea should be developed fluorine content standards.